公开(公告)号：US20120002656A1

公开(公告)日：2012-01-05

申请号：US13231684

申请日：2011-09-13

申请人： Kris Ng ,  Tricci So ,  Yusupha Touray ,  Donald Wade ,  Hamid Mahmood ,  Fayaz Kadri

发明人： Kris Ng ,  Tricci So ,  Yusupha Touray ,  Donald Wade ,  Hamid Mahmood ,  Fayaz Kadri

IPC分类号： H04W88/00

CPC分类号： H04W92/24 ,  H04W4/12 ,  H04W36/18 ,  H04W64/00 ,  H04W84/12 ,  H04W88/16

摘要： System and method for seamless roaming over scalable wide area Wireless LAN networks (WAWLAN) with clientless mobile subscribers. A preferred embodiment comprises a wireless gateway (WG) coupled to one or more access points in a wireless network to form a wireless cluster (WC), a network access gateway (NAG) coupled to a wired network, and a switch coupled to the WG and the NAG. Each wireless cluster is a Wireless LAN Network (WLAN) with homogenous or heterogeneous network architecture. The WG detects mobile nodes in a wireless cluster and tracks mobile node location in the wireless cluster. The NAG is an anchor point for mobile nodes in the WAWLAN and maintains a fixed source of information about each mobile node regardless of their mobility. The switch provides connectivity between the NAG and the WG. Seamless roaming across Wireless LAN network boundary by mobile subscribers without requiring special mobility enabling client software.

摘要翻译： 通过可扩展广域无线局域网（WAWLAN）与无客户端移动用户进行无缝漫游的系统和方法。 优选实施例包括耦合到无线网络中的一个或多个接入点的无线网关（WG），以形成无线集群（WC），耦合到有线网络的网络接入网关（NAG）以及耦合到WG的交换机 和NAG。 每个无线集群是具有同质或异构网络架构的无线局域网（WLAN）。 WG检测无线群集中的移动节点，并跟踪无线群集中的移动节点位置。 NAG是WAWLAN中移动节点的定位点，并且维护关于每个移动节点的固定信息源，而不管其移动性如何。 该交换机提供NAG和WG之间的连接。 通过移动用户在无线LAN网络边界上无缝漫游，无需特殊的移动性，实现客户端软件。

公开(公告)号：US07738424B2

公开(公告)日：2010-06-15

申请号：US11271632

申请日：2005-11-10

申请人： Kris Ng ,  Tricci So ,  Yusupha Touray ,  Donald Wade ,  Hamid Mahmood ,  Fayaz Kadri

发明人： Kris Ng ,  Tricci So ,  Yusupha Touray ,  Donald Wade ,  Hamid Mahmood ,  Fayaz Kadri

IPC分类号： H04Q7/00

CPC分类号： H04W92/24 ,  H04W4/12 ,  H04W36/18 ,  H04W64/00 ,  H04W84/12 ,  H04W88/16

摘要： System and method for seamless roaming over scalable wide area Wireless LAN networks (WAWLAN) with clientless mobile subscribers. A preferred embodiment comprises a wireless gateway (WG) coupled to one or more access points in a wireless network to form a wireless cluster (WC), a network access gateway (NAG) coupled to a wired network, and a switch coupled to the WG and the NAG. Each wireless cluster is a Wireless LAN Network (WLAN) with homogenous or heterogeneous network architecture. The WG detects mobile nodes in a wireless cluster and tracks mobile node location in the wireless cluster. The NAG is an anchor point for mobile nodes in the WAWLAN and maintains a fixed source of information about each mobile node regardless of their mobility. The switch provides connectivity between the NAG and the WG. Seamless roaming across Wireless LAN network boundary by mobile subscribers without requiring special mobility enabling client software.

摘要翻译： 通过可扩展广域无线局域网（WAWLAN）与无客户端移动用户进行无缝漫游的系统和方法。 优选实施例包括耦合到无线网络中的一个或多个接入点的无线网关（WG），以形成无线集群（WC），耦合到有线网络的网络接入网关（NAG）以及耦合到WG的交换机 和NAG。 每个无线集群是具有同质或异构网络架构的无线局域网（WLAN）。 WG检测无线群集中的移动节点，并跟踪无线群集中的移动节点位置。 NAG是WAWLAN中移动节点的定位点，并且维护关于每个移动节点的固定信息源，而不管其移动性如何。 该交换机提供NAG和WG之间的连接。 通过移动用户在无线LAN网络边界上无缝漫游，无需特殊的移动性，实现客户端软件。

公开(公告)号：US07400888B2

公开(公告)日：2008-07-15

申请号：US11698832

申请日：2007-01-29

申请人： Adrian Smith ,  David Steer ,  Koon Hoo Teo ,  Kris Ng

发明人： Adrian Smith ,  David Steer ,  Koon Hoo Teo ,  Kris Ng

IPC分类号： H04Q7/20

CPC分类号： H01Q1/125 ,  H04B7/0613 ,  H04B7/0695 ,  H04B7/0802 ,  Y02D70/20

摘要： A wireless network has nodes, which can be accessed by wireless terminals via wireless access links, coupled via wireless transit links using multiple directional antenna beams. The nodes are self-organizing and self-adapting as nodes are added and as other changes occur. A new node uses beam scanning to listen for signals from any existing nodes and responds accordingly to join a network. Established nodes each recurrently transmit a welcome message on unused beams, to be received by a new node. Failure of transit links, e.g. due to interference on a channel frequency, is detected with automatic restoration using another frequency. Beam scanning can be enhanced using alternate overlapping beams and diversity techniques.

摘要翻译： 无线网络具有节点，其可以由无线终端经由无线接入链路访问，经由使用多个定向天线波束的无线传输链路耦合。 节点是自组织的，并且随着节点被添加并且随着其他变化发生而自适应。 新节点使用波束扫描来监听来自任何现有节点的信号，并作出相应响应以加入网络。 建立的节点每个都会在未使用的波束上循环发送欢迎消息，由新节点接收。 过境连接失败，例如 由于对信道频率的干扰，使用另一频率自动恢复来检测。 可以使用交替的重叠光束和分集技术来增强光束扫描。

公开(公告)号：US20060198349A1

公开(公告)日：2006-09-07

申请号：US11271632

申请日：2005-11-10

申请人： Kris Ng ,  Tricci So ,  Yusupha Touray ,  Donald Wade ,  Hamid Mahmood ,  Fayaz Kadri

发明人： Kris Ng ,  Tricci So ,  Yusupha Touray ,  Donald Wade ,  Hamid Mahmood ,  Fayaz Kadri

IPC分类号： H04Q7/24 ,  H04L12/56 ,  H04L12/28

CPC分类号： H04W92/24 ,  H04W4/12 ,  H04W36/18 ,  H04W64/00 ,  H04W84/12 ,  H04W88/16

摘要： System and method for seamless roaming over scalable wide area Wireless LAN networks (WAWLAN) with clientless mobile subscribers. A preferred embodiment comprises a wireless gateway (WG) coupled to one or more access points in a wireless network to form a wireless cluster (WC), a network access gateway (NAG) coupled to a wired network, and a switch coupled to the WG and the NAG. Each wireless cluster is a Wireless LAN Network (WLAN) with homogenous or heterogeneous network architecture. The WG detects mobile nodes in a wireless cluster and tracks mobile node location in the wireless cluster. The NAG is an anchor point for mobile nodes in the WAWLAN and maintains a fixed source of information about each mobile node regardless of their mobility. The switch provides connectivity between the NAG and the WG. Seamless roaming across Wireless LAN network boundary by mobile subscribers without requiring special mobility enabling client software.

摘要翻译： 通过可扩展广域无线局域网（WAWLAN）与无客户端移动用户进行无缝漫游的系统和方法。 优选实施例包括耦合到无线网络中的一个或多个接入点的无线网关（WG），以形成无线集群（WC），耦合到有线网络的网络接入网关（NAG）以及耦合到WG的交换机 和NAG。 每个无线集群是具有同质或异构网络架构的无线局域网（WLAN）。 WG检测无线群集中的移动节点，并跟踪无线群集中的移动节点位置。 NAG是WAWLAN中移动节点的定位点，并且维护关于每个移动节点的固定信息源，而不管其移动性如何。 该交换机提供NAG和WG之间的连接。 通过移动用户在无线LAN网络边界上无缝漫游，无需特殊的移动性，实现客户端软件。

公开(公告)号：US08036655B2

公开(公告)日：2011-10-11

申请号：US12785151

申请日：2010-05-21

申请人： Kris Ng ,  Tricci So ,  Yusupha Touray ,  Donald Wade ,  Hamid Mahmood ,  Fayaz Kadri

发明人： Kris Ng ,  Tricci So ,  Yusupha Touray ,  Donald Wade ,  Hamid Mahmood ,  Fayaz Kadri

IPC分类号： H04W4/00

CPC分类号： H04W92/24 ,  H04W4/12 ,  H04W36/18 ,  H04W64/00 ,  H04W84/12 ,  H04W88/16

摘要： System and method for seamless roaming over scalable wide area Wireless LAN networks (WAWLAN) with clientless mobile subscribers. A preferred embodiment comprises a wireless gateway (WG) coupled to one or more access points in a wireless network to form a wireless cluster (WC), a network access gateway (NAG) coupled to a wired network, and a switch coupled to the WG and the NAG. Each wireless cluster is a Wireless LAN Network (WLAN) with homogenous or heterogeneous network architecture. The WG detects mobile nodes in a wireless cluster and tracks mobile node location in the wireless cluster. The NAG is an anchor point for mobile nodes in the WAWLAN and maintains a fixed source of information about each mobile node regardless of their mobility. The switch provides connectivity between the NAG and the WG. Seamless roaming across Wireless LAN network boundary by mobile subscribers without requiring special mobility enabling client software.

摘要翻译： 通过可扩展广域无线局域网（WAWLAN）与无客户端移动用户进行无缝漫游的系统和方法。 优选实施例包括耦合到无线网络中的一个或多个接入点的无线网关（WG），以形成无线集群（WC），耦合到有线网络的网络接入网关（NAG）以及耦合到WG的交换机 和NAG。 每个无线集群是具有同质或异构网络架构的无线局域网（WLAN）。 WG检测无线群集中的移动节点，并跟踪无线群集中的移动节点位置。 NAG是WAWLAN中移动节点的定位点，并且维护关于每个移动节点的固定信息源，而不管其移动性如何。 该交换机提供NAG和WG之间的连接。 通过移动用户在无线LAN网络边界上无缝漫游，无需特殊的移动性，实现客户端软件。

公开(公告)号：US20100226336A1

公开(公告)日：2010-09-09

申请号：US12785151

申请日：2010-05-21

申请人： Kris Ng ,  Tricci So ,  Yusupha Touray ,  Donald Wade ,  Hamid Mahmood ,  Fayaz Kadri

发明人： Kris Ng ,  Tricci So ,  Yusupha Touray ,  Donald Wade ,  Hamid Mahmood ,  Fayaz Kadri

IPC分类号： H04W72/04

CPC分类号： H04W92/24 ,  H04W4/12 ,  H04W36/18 ,  H04W64/00 ,  H04W84/12 ,  H04W88/16

摘要： System and method for seamless roaming over scalable wide area Wireless LAN networks (WAWLAN) with clientless mobile subscribers. A preferred embodiment comprises a wireless gateway (WG) coupled to one or more access points in a wireless network to form a wireless cluster (WC), a network access gateway (NAG) coupled to a wired network, and a switch coupled to the WG and the NAG. Each wireless cluster is a Wireless LAN Network (WLAN) with homogenous or heterogeneous network architecture. The WG detects mobile nodes in a wireless cluster and tracks mobile node location in the wireless cluster. The NAG is an anchor point for mobile nodes in the WAWLAN and maintains a fixed source of information about each mobile node regardless of their mobility. The switch provides connectivity between the NAG and the WG. Seamless roaming across Wireless LAN network boundary by mobile subscribers without requiring special mobility enabling client software.

摘要翻译： 通过可扩展广域无线局域网（WAWLAN）与无客户端移动用户进行无缝漫游的系统和方法。 优选实施例包括耦合到无线网络中的一个或多个接入点的无线网关（WG），以形成无线集群（WC），耦合到有线网络的网络接入网关（NAG）以及耦合到WG的交换机 和NAG。 每个无线集群是具有同质或异构网络架构的无线局域网（WLAN）。 WG检测无线群集中的移动节点，并跟踪无线群集中的移动节点位置。 NAG是WAWLAN中移动节点的定位点，并且维护关于每个移动节点的固定信息源，而不管其移动性如何。 该交换机提供NAG和WG之间的连接。 通过移动用户在无线LAN网络边界上无缝漫游，无需特殊的移动性，实现客户端软件。

公开(公告)号：US20070123263A1

公开(公告)日：2007-05-31

申请号：US11698832

申请日：2007-01-29

申请人： Adrian Smith ,  David Steer ,  Koon Teo ,  Kris Ng

发明人： Adrian Smith ,  David Steer ,  Koon Teo ,  Kris Ng

IPC分类号： H04Q7/20

CPC分类号： H01Q1/125 ,  H04B7/0613 ,  H04B7/0695 ,  H04B7/0802 ,  Y02D70/20

摘要： A wireless network has nodes, which can be accessed by wireless terminals via wireless access links, coupled via wireless transit links using multiple directional antenna beams. The nodes are self-organizing and self-adapting as nodes are added and as other changes occur. A new node uses beam scanning to listen for signals from any existing nodes and responds accordingly to join a network. Established nodes each recurrently transmit a welcome message on unused beams, to be received by a new node. Failure of transit links, e.g. due to interference on a channel frequency, is detected with automatic restoration using another frequency. Beam scanning can be enhanced using alternate overlapping beams and diversity techniques.

摘要翻译： 无线网络具有节点，其可以由无线终端经由无线接入链路访问，经由使用多个定向天线波束的无线传输链路耦合。 节点是自组织的，并且随着节点被添加并且随着其他变化发生而自适应。 新节点使用波束扫描来监听来自任何现有节点的信号，并作出相应响应以加入网络。 建立的节点每个都会在未使用的波束上循环发送欢迎消息，由新节点接收。 过境连接失败，例如 由于对信道频率的干扰，使用另一频率自动恢复来检测。 可以使用交替的重叠光束和分集技术来增强光束扫描。

公开(公告)号：US07177644B2

公开(公告)日：2007-02-13

申请号：US10682084

申请日：2003-10-10

申请人： Adrian Smith ,  David Steer ,  Koon Hoo Teo ,  Kris Ng

发明人： Adrian Smith ,  David Steer ,  Koon Hoo Teo ,  Kris Ng

IPC分类号： H04Q7/20 ,  H04Q7/00 ,  H04M1/00

CPC分类号： H01Q1/125 ,  H04B7/0613 ,  H04B7/0695 ,  H04B7/0802 ,  Y02D70/20

摘要： A wireless network has nodes, which can be accessed by wireless terminals via wireless access links, coupled via wireless transit links using multiple directional antenna beams. The nodes are self-organizing and self-adapting as nodes are added and as other changes occur. A new node uses beam scanning to listen for signals from any existing nodes and responds accordingly to join a network. Established nodes each recurrently transmit a welcome message on unused beams, to be received by a new node. Failure of transit links, e.g. due to interference on a channel frequency, is detected with automatic restoration using another frequency. Beam scanning can be enhanced using alternate overlapping beams and diversity techniques.